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• java.util.Optional for AjaxFallback**  

  Jira
  server ASF JIRA serverId 5aa69414-a9e9-3523-82ec-879b028fb15b key WICKET-6104

• new DateTime APIs for wicket-datetime

  Jira
  server ASF JIRA serverId 5aa69414-a9e9-3523-82ec-879b028fb15b key WICKET-6105

• Lambda API for Listeners (onClick, etc.) Done. See Lambdas.java

AppCache for Offline-Support (

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Tobias Soloschenko: In progress)

• http://www.html5rocks.com/de/tutorials/appcache/beginner/
• http://www.w3.org/TR/2011/WD-html5-20110525/offline.html

See: https://github.com/klopfdreh/wicket-components-playground/wiki/20.-HTML5-OfflineMode Implementation on hold (with ServiceWorker)

Better monitoring (

Jira
server ASF JIRA serverId 5aa69414-a9e9-3523-82ec-879b028fb15b key WICKET-6120

)

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